diff --git a/escape.vim b/escape.vim
index a698ae0..1dd1838 100644
--- a/escape.vim
+++ b/escape.vim
@@ -1,6 +1,6 @@
 " Vim auto-load script
 " Author: Peter Odding <peter@peterodding.com>
-" Last Change: March 15, 2011
+" Last Change: November 21, 2011
 " URL: http://peterodding.com/code/vim/misc/
 
 " Convert a string into a :substitute pattern that matches the string literally.
@@ -23,4 +23,24 @@ function! xolox#misc#escape#substitute(string)
   return ''
 endfunction
 
+" Convert a string into a quoted command line argument. I was going to add a
+" long rant here about &shellslash, but really, it won't make any difference.
+" Let's just suffice to say that I have yet to encounter a single person out
+" there who uses this option for its intended purpose (running a UNIX-style
+" shell on Windows).
+
+function! xolox#misc#escape#shell(string)
+  if xolox#misc#os#is_win()
+    try
+      let ssl_save = &shellslash
+      set noshellslash
+      return shellescape(a:string)
+    finally
+      let &shellslash = ssl_save
+    endtry
+  else
+    return shellescape(a:string)
+  endif
+endfunction
+
 " vim: ts=2 sw=2 et
diff --git a/open.vim b/open.vim
index 30d2aa3..1fb24e0 100644
--- a/open.vim
+++ b/open.vim
@@ -1,10 +1,10 @@
 " Vim auto-load script
 " Author: Peter Odding <peter@peterodding.com>
-" Last Change: June 18, 2011
+" Last Change: November 21, 2011
 " URL: http://peterodding.com/code/vim/misc/
 
 if !exists('s:version')
-  let s:version = '1.0'
+  let s:version = '1.1'
   let s:enoimpl = "open.vim %s: %s() hasn't been implemented for your platform! If you have suggestions, please contact peter@peterodding.com."
   let s:handlers = ['gnome-open', 'kde-open', 'exo-open', 'xdg-open']
 endif
@@ -15,7 +15,7 @@ function! xolox#misc#open#file(path, ...)
       call xolox#shell#open_with_windows_shell(a:path)
     catch /^Vim\%((\a\+)\)\=:E117/
       let command = '!start CMD /C START "" %s'
-      silent execute printf(command, shellescape(a:path))
+      silent execute printf(command, xolox#misc#escape#shell(a:path))
     endtry
     return
   elseif has('macunix')